Bow-facing oar



Bow FAGING OAR Filed Nov. 4. 1925 s sheets-sheet 1 w. H. KIMBERLIN l April 12 1927.

Bow FACING. GAR

Filed Nov. 4. 1926 3' Sheets-Sheet 2 QN M MQ 1,624,743 Armi 12 1927 vv. H. KIMBERLIN BOW FAC ING OAR Filed Nov. 4. 192e '3 sheets-sheet s ing mechanism particularly adaptable to bow facing oars.

Patented Amm-i12, 1927.

' UNITED STATES n n l 1,624,743 PATENT- OFFICE.

'WILLIAM Hanny xinnnnnm, or nxsnancx, Noam Daxon.'

now-racine can.

Application led November 4, 1926. Serial No. 148,254.

This invention relates to bow facing oars and more particularly to a device of this character in which the blade isfeathercd.

An im ortant object of the invention is to provi e a device of this character which nay be very readily and cheaply constructed, which will be durable and eicient' in service and a general im rovement in the art.

A further object o the invention is to rovide adevice of this character whichmay Ee very readily attached to and removed from the boat, so that loss thereof through theft may be prevented. I

A further object of the invention 1s the provision of la' noveland improved feather- These and other objectsI attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein Figure 1 is a plan view showing a fea-thering oar constructed in accordance wlth my invention applied to the gunwale of a boat;

Figure 2 is a side elevation thereof;

.'Figure is an enlarged plan view of the plate showing in dotted lines the connection between the levers;

Figure 4 is a section on the line 4--4 of Fi ure 3 showing the position of the contro lug during the working stroke; 0 V

v Figure 5 shows theoperation of the tripping lug when the control lug is moved in the direction of the working stroke whlle 1n the eathering position;

Figure 6 is a view showing kthe manner in which the lug is positioned at the end of the working stroke;

Figure 7 shows the position of the control lug after a short movement on the feathering stroke;

Figure 8 shows the position of the lug when the feathering movement has been completed;

Figure 9 shows the position assumed by the control lug when engaged by thetrlpping lug at the end of the' feathering stroke;

Figure 10 isa view of the adjacent ends of the levers with the top plate removed;

Figure 11 is an enlarged view' of the latch employed for holding the feathering oar in position upon the gunwale o the boat;.

Figure 12 is a sectional View through'the ad'acent end of the lever and its mountin igure 13 is a sectional view at rig t angles to that shown in Figure 12 illustrat- 16 and 17, each having lat faces 10311,

confronting the plates 10 and. 11.y Adjacent ends of the levers 16 and 17 interdigitate and are connected by a pin and slot connection 18 through which power may be transmitted to the lever 17 from the lever 16.

The lever 16 is formed in two sections 16, 16", the section 16a engaging the pivot and having formed in itslouter end a socket'19 receiving the end of the sections 16". Through the sections 16al and 16", aligned openings 20 and 2'1 are formed permitting passage of the pivot bolt, sothat this bolt serves not only to provide a pivot for the lever 16, but likewise as'a means for connecting 1together the sections thereof. The outer end of the section 16h has secured thereto in any suitable manner a handle 22.

The lever 17 is similarly formed in two sections 17a and 17 and the section 17EL is socketed at 23 in its outer end for the reception of the section 17". The sections 17a and 17" are provided with openings 24 and 25 for the passage of the pivot bolt 13. rllfhe `outer end of the section 17b has operatively secured thereto an oar blade 26.

As a means for securing the oar to the sides 27 of the boat, l provide a plate 28 having openings 29 for the passage of securing elements for engagemet'with the-sides of the boat and 'having vertically extending ears 30. Between the ears `30, a supporting block 31 is mounted for rocking movement upon pivot bolts 32. The upper surface of this supporting block is provided with apwardly extendlnig lugs 33 adapted to project through openings 34 formed in the lates 10 and 11. rl`he upper ends of these ugs immediately above the face of the upper plate 34, when the oar is in position thereon, are formed with horizontally eX- tending slots 35 intheir adjacent faces. To the upper plate is pivoted a latch bar 36,

the pivot being arranged intermediate the' nio in the slots 35, so as to preventl vertical movement of the oar. Flanges 37 upon the plate engage with the lugs and limit the movement of the plate when it is properly .engaged in the slots 35.

he connection between, the section 17" of the lever 17 and lthe blade 26 is in the form of a tube 38, the inner end of which rotatably enga es the section 17 and the outer end of w 'ich is forked. to receive the blade 26, as indicated at 39. The rotation of the tube upon the section 17" of the lever 17 is limited through a pin and slot engagement 40 and 41 `to 90-, so that the blade may be either placed horizontal or vertical, 'as desired. A

ortion of the inner end of of the tube projects between adjacent faces 4of the plates 10 and 11 and upon this portion, the tube is provided with a lug 42 having a fla-t face 43 which, when the pin 40 is at one end of the slot 41, flatly engages against one of tlie plates' and which'serves to prevent rotation of the tube and a second face 44 at substantially right angles to the face 4 3 which, when the pin is at the opposite end of the slot, engages. the plate to prevent rotation of the sleeve 1n one d1- rection. Since the pin 41 at this time limits rotation of the tube in the opposite direction, the tube is held stationary in each of its two positionsl and these positions are at right angles to one another. When the tube is in the iirst named osition, the blade is perpendicular and in its operative position and when in the last named position, the blade is horizontally disposed and lin what is generally known its feathered position.

In order that by the operation of the lever, the tube and blade may be rotated from one to the other of .said positions, I -provide in the plate 10, with. which the lug coacts, openings 45 and 46 with which the lug of the tu e is aligned when the blade is at the ends of its working and feathering strokes, respectively. The tube 38 is provided with a pair of opposed shoulders' 47 and .48, circumferentially spaced from one another about the tube and at present disclosed as provided by forming in the tube a slot 49, the opposite end walls of which provide the shoulders. This slot is so'dispos'ed that the'shoulder 47 is substantlally perpendicular to the plate 11, while the oar 1s on its working stroke, and the shoulder 48 is perpendicular to the plate 11 when the oar is on its feather-ing stroke. The plate 10 has projecting outwardly from the face thereof lugs 50 and 51 substantially opposing the openings 45 and 46 and adapted for coaction with t e shoulders 47 and 48. As the oar arrives at the end of its working stroke, as more particularly illustrated in Figure 6, the lug 50 engages with the shoulder 47. Since the oar at this time is moving in the direction of the arrow A of this figure, the tube is rotating in the direction of the arrow B until the binding o'f the face 43 of the lug against the plate 10 0 -limits this movement. This places the nose 52 between the faces -`43 and 44 of the lug in the notch 45, so that in return movement, the plate, by its' engagement with this nose, rotates the tube to the position shown in Figure/5, where the device illustrated has just begun its feathering stroke. Arriving at the end of its feathering stroke, the

-lug 51 engages against the shoulder 48, ro-

Vrotation imparted to the tube by the edge of the opening 45, during the initial portion 90 of the feathering stroke, will move the slot 49 to a position'where the lug '50 could not entervthe same if the movement of the oar was checked before the feathering stroke. was fully completed and the oar returned upon what is normally the'working stroke. .In order to prevent the lug 50 from binding against the tube and thus causing damage, I place adjacent the edge of the openmg 45 upon the plate 11 a lug 53 which, upon movement of the oar. in the direction of the working stroke, but with the tube and blade -in the feathering stroke position, engages a shoulder 54 on the tube. This shoulder is at one end of a slot 55 which the upper end of the lug traverses when the oar is in its working stroke and the tube and blade are properly positioned. This lug, by its engagement with the shoulder 54, imparts sufiicient rotation to the tube in the d- 11o rection of the arrow to align the slot 49 for the reception of the lug 50. This lug furthermore serves as a means for providing a short working stroke, as it will -be obvious that if the blade is' returned before- 115 the feathering stroke is completed, the lug will partially turn the blade and the engagement of the blade with the Water will complete the turning movement, so that the blade is in its working stroke position for 120 a short distance. Thus, instead of the full Working stroke, repeated short .working strokes may be produced. if desired. In construction, the pin of the pin and slot connection between the levers is preferably 125 left loose, so that it provides a rpller reducing friction between the elements. A

It will be obvious lthat the construction hereinbefore set forth is capable of a certain range of change and modification with- 13C v 'I v`ont'.,Inateri'ally departing from-'the spirit of .the invention and I accordinglydo notlimit myself toY such specific structure except as hereinafter claimed. l

I claim '1.'- In a featheringoar'and in combination, afplate, a lever pvoted to thelplate, means for shifting the lever'about'the pivot thereof,

n asleeve rotatably mounted uponjthe lever and bearing a blade, means limiting rotationv ofthe sleeve at positions where the blade is I i arranged-'inthe planel of swing and when the blade is perpendicular. to the plane of swingvhofthe lever, la lug upon the sleeve having facescoactjng with thelplate when gtheslee've is4 atvsaid, limits of its movement tovvprevent returnjmovement 'of the sleeve,

means coacting with thetube when the level'. isat the. opposite vlimits of `its movement for .20 .partiallyrotatingthe sleeve? from one toward v"A the ,other of said positions, said plate having `il coaction with said lug during the initial por.- v

tion 'of thefstroke of the lever completing thefrotation of 'the vsleeve from one to the other of ,saidv positions. e

?.. vIn a-'zfea herifl g oar and in combination,

'l l a' plate, ar vleverfpivoted to the plate, means vfor shiftingjthe lever about'the pivot thereof,

l ja sleeve-V-rotat'ably mounted upon the lever l, and lbearing a blademeans limiting rotation of the 'sleeve` at positions .where thel blade-is v arrangedfin the plane of swing and eel 'when the-blade'is perpendicular to the plane of swing. of the lever, a 'lug upon thesleeve having' faces coacting with the plate -when the sleeve is at said limits of its movement to prevent -return -movement'of the sleeve,

means coacting with the tube whenthe lever is at the opposite limits of'its movement for partially rotating the sleeve from one toward the other'of said positions, said plate having coacton with said lug during the initial portion ofthe stroke of the lever completing the rotation of the sleeve froml one to the other of said positions, the plate having openings into whichA the lug extends v during such initialA movements thereof by the first named means, the edges of said openings by'engagement vwith the lugs completing rotation of the sleeve. v

3. Ina bow facing oar, spaced plates,

spaced pivots extending between the plates,

a leverpivoted upon each pivot adjacent maintain the plates lin spaced relation, the.

pivots maintaining the plates in assembled relation against the lugs.l`

4. In a bow facing oar, spaced plates,l

spaced pivots extending between the` plates, a' lever pivoted upon each pivotv adjacent y positions.

the ends of the levers .providing interdigitated portions having pin and slot engage ment with lone another, a blade carried by one of said levers and a handle carried by the other ot' ,the levers, said leversbeing each formed `in two sectionsone of which has a socket in which thev other fits, the pivot of eachleve'r extending through the walls of the socket of the lever and through the engaged end portion of the outer section of the lever. l v

5. In a feathering oar and in combinatiom a plate, a lever 'pivoted to the plate, meansv for shifting the lever about the pivotthereof, y

a sleeve rotatably mounted upon the lever and bearing a blade, means limiting rotation of the sleeve at positions where theV gaging said` shouldersat the ends of the stroke ot the .lever for partially rotating" the sleeve from one toward the other of saidpos'tions, said plate having -coaction with said lug during the initial portion' of ,the stroke of the lever completing the rotation of the sleeve from one to the other of said 6. In a featheringoar and in'combination, a plate, a lever pivotedf to the plate, means for shifting the lever about' the pivot thereof, a sleeve rotatably mounted 'upon the lever and'vbearingablade, means limiting rotation of the sleeve at positions where the blade is arranged in the plane of swing and when the blade is perpendicular to theplane of swing of the lever, a lug upon the sleeve having faces coacting with the plate when the sleeve is at said limits of its movements toprevent return movement ofl the sleeve, lmeans'coacting with the tube when the lever is at the opposite limits of its movement for partially rotating the sleeve from one toward .the other of said positions, said plate having coaction with said lug during' the initial portion of the stroke of the lever completing the rotation ofthe sleeve from one to the other of said positions; the face'of .the lug coacting with the plate when the blade is in the last named position flatly engaging the plate to thereby resist rotation of the sleeve under pressure applied to' the blade.

7. In a bow facing oar, spaced plates, spaced pivots extending` between the plates,

a lever fpivoted upon each pivot adjacent the ends o the levers providing interdigitated portions having pin and slot engagement with one another, a blade carried by one of saidlevers, a handle carried 'by the' other of the levers and a horizontally pivoted member upon vwhich they plates ,arel mounted,

said horizontally pivoted member having upwardly projecting pins extending through openings formed in theplate, the upper plate having upon the upper surface thereof intermediate the openings through which the pins extend a pivot for a latch, said latch engaging the slots formed in the upperv end of the pin.

8. In a feathering oar and 1n combination, a plate, au lever pivoted to the plate,A

means for shifting the lever about the pivot .'hereof. a blade bearing sleeve rotatableupon the lever from a position where the blade is in working position to a position where the blade is feathered, means p'ositively'limiting the pivotal movement ofthe lever and shifting said sleeve whereby as the lever is moved in one direction the blade is in the working position and in the opposite direction the blade is feathered and means for partially rotating the blade from the feathered toward the working position when the blade is moved in the direction of the working stroke while feathered. v

9. In a feathering oar and in combination, a plate, a lever pivoted to the plate, means for shifting the lever about the pivot thereof, a sleeve rotatably mounted upon the lever and bearing a blade, means limiting rotation of the sleeve at positions where the blade is arranged in the plane of swing and when the blade is perpendicular to the plane of swing of the lever, means coacting with the tube when the lever is at opposite limits of its movement for partially rotating the sleeve from one toward the other of said positions, means upon the sleeve and coacting with the plate during the initial portion of the stroke of the lever for completing the rotation of the sleeve from one to the other of said positions and during the stroke maintaining the sleeve stationary in one or the lother of said positions.

l10.*In a feathering oar and in combination, a pivoted lever swingable between certain limits, a sleeve rotatably mounted upon the lever and bearing a blade, means limiting rotation of the sleeve upon the lever in positions where the blade is arranged in the plane of swing of the lever and when the blade is perpendicular to the plane of swing of the lever, a member adjacent which the lever operates and coacting elements upon the sleeve and member partially rotating said sleevewhen the sleeve is at either limit of its movement from one toward the other of said positions and means upon said sleeve coacting with the member preventing rotation of the sleeve while the sleeve is intermediate the limit of its movement and completing the rotation of the sleeve from one toward the other of said positions in the initial movement of the lever after shifting of the sleeve by the rst named means.

In testimony whereof I hereunto aiiix my signature.

WILLIAM HENRY KIMBERLIN. 

